Monette Unity D7-7 vs Yamaha TR-8C4
the Monette Unity D7-7 has a larger throat opening.
Mouthpiece A
Monette Unity D7-7
• Trumpet
Cup diameter16.20 mm / 0.6378 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
Yamaha TR-8C4
• Trumpet
Cup diameter16.19 mm / 0.6374 in
Cup depthMedium
Rim width—
Throat diameter3.65 mm / 0.1437 in
BackboreSemi-narrow
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.20 mm / 0.6378 in.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Monette Unity D7-7 has a wider throat (3.66 mm / 0.1441 in vs 3.65 mm / 0.1437 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.